doBy package - RDocumentation

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doBy

Groupwise Statistics, LSmeans, Linear Contrasts, Utilities

Facilities for working with grouped data: 'do' something to data stratified 'by' some variables.
LSmeans (least-squares means), general linear contrasts.
Miscellaneous utilities
Miscellaneous datasets

Author: Søren Højsgaard, Ulrich Halekoh

Online documentation

https://hojsgaard.github.io/doBy

Development site

https://github.com/hojsgaard/doBy

CRAN page:

https://cran.r-project.org/web/packages/doBy/index.html

Further info at:

http://people.math.aau.dk/~sorenh/software/doBy/

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Version

Install

install.packages('doBy')

Monthly Downloads

356,484

Version

4.6.21

License

GPL (>= 2)

Maintainer

Søren Højsgaard

Last Published

April 29th, 2024

Functions in doBy (4.6.21)

Scale a dataframe or matrix

generate_data_list

Generate data list

model_stability_glm

Model stability for glm objects

Formula operations and coercion.

Coronary artery disease data

Locate the index of the first/last unique value

Growth curves of pigs in a 3x3 factorial experiment

Forced expiratory volume in children

Milk yield data for manually milked cows.

Computing simple descriptive statistics of a numeric vector.

Mathematics marks for students

Auxillary functions for computing lsmeans, contrasts etc

Get formulas from model_stability_glm_class object

recover_pca_data

Recover data from principal component analysis

Compute linear estimates

Linear estimates matrix

Internal functions for the doBy package

Heat development in cement under hardening.

Compute LS-means (aka population means or marginal means)

interaction-plot

Two-way interaction plot

split_byrow_bycol

Split matrix or dataframe into list

Scaling numerical values

parseGroupFormula

Extract components from a formula with "conditioning bar"

Plot linear model object

Tidy a linest object

Rename columns in a matrix or a dataframe.

Find sub-sequences of identical elements in a vector.

Cross-validation for list of glm objects

Convert right hand sided formula to a list

Section a function and set default values in function

Yield from Danish agricultural production of grain and root crop.

Determines if contrasts are estimable.

Truncate values in a matrix / vector to zero if they are below a certain threshold.

Contrasts for lm, glm, lme, and geeglm objects

Where are the n largest or n smallest elements in a numeric vector ?

Fast summary of microbenchmark object

Matrix operations based on matching dimensions

data-personality

Personality traits

Weight and size of 20 potatoes

Prostate Tumor Gene Expression Dataset

Convert expression into function object.

Taylor expansion (one dimension)

Finds the basis of the (right) null space.

Recode values of a vector

Fish oil in pig food

Tidy an esticon object

Calculate "time since event" in a vector.

List of lm objects with a common model

Sampling from a data frame

Diet of Atlantic cod in the Gulf of St. Lawrence (Canada)

Gene expression signatures for p53 mutation status in 250 breast cancer samples

Ordering (sorting) rows of a data frame

Split a data frame

binomial_to_bernoulli_data

Convert binomial data to bernoulli data

bquote_fun_list

Backquote a list of functions

Lean meat contents of 344 pig carcasses

Formula based version of lapply and sapply

Character vector to matrix

Finds subsets of a dataframe which is split by variables in a formula.

Function to calculate groupwise summary statistics

Function to make groupwise transformations